Modeling and simulations on a fuzzy- PID position controller of electro hydraulic servo system

2015 ◽  
Author(s):  
Amanuel Tadesse ◽  
Ma Jungong
Keyword(s):  
Servo System ◽  
Fuzzy Pid ◽  
Modeling And Simulations ◽  
Position Controller ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

Fuzzy PID Control of Materials Testing Machine Electrical Hydraulic Servo System

2013 ◽  
Vol 765-767 ◽  
pp. 1873-1876
Author(s):  
Xiu Juan Liu ◽  
Yan Chun Liu ◽  
Yue Ming Yang ◽  
Kai Zhao ◽  
Yi Zhu
Keyword(s):  
Pid Control ◽  
Testing Machine ◽  
Servo System ◽  
Good Effect ◽  
Materials Testing ◽  
Fuzzy Pid ◽  
Fuzzy Pid Control ◽  
Load Disturbance ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

Material experiment system of hydraulic servo system is subject to load disturbance and load disturbance is a function of standard mechanical parameters of rock samples. Rock mass is very discrete, anisotropy, composition is not single and inelastic[. Traditional tester can't get the complete stress-strain curve of rock[ material, in order to solve the shortage of the traditional hydraulic servo system, in this paper, the fuzzy PID control is successfully applied to the hydraulic servo system, through the experiments and get good effect.

Study of Hydraulic Servo System Based on Fuzzy Sliding Mode Algorithm

2013 ◽  
Vol 753-755 ◽  
pp. 2674-2678
Author(s):  
Kun Yang ◽  
Cai Jun Liu ◽  
Shu Min Liu
Keyword(s):  
Control Algorithm ◽  
Sliding Mode ◽  
Servo System ◽  
Time Varying ◽  
External Interference ◽  
System A ◽  
Hydraulic Servo ◽  
Fuzzy Sliding Mode ◽  
Hydraulic Servo System ◽  
Position Servo

Based on the situation that the hydraulic position servo system is easily influenced by the external interference and the parameters of which are different with time-varying, the fuzzy control can soften the buffeting and the sliding algorithm has no the same problems as the hydraulic position servo system, a brandly-new fuzzy sliding control algorithm is designed. In the simulation process, within the parameters of simulated time-varying and outside strong interference, the results show that the hydraulic servo system based on fuzzy sliding mode control algorithm has a greater resistance to internal and external interference and time-varying parameters.

The Modeling and Control of the Hydraulic Servo System by Using On-Off Valve

2000 ◽  
Author(s):  
Xuanyin Wang
Keyword(s):  
Servo System ◽  
Mathematic Model ◽  
Hydraulic Cylinder ◽  
Servo Control ◽  
Linear Quadratic ◽  
Modeling And Control ◽  
Hydraulic Servo ◽  
Self Tuning ◽  
Hydraulic Servo System ◽  
And Control

Abstract This paper researches on the hydraulic servo system by using ordinary on-off valves. The mathematic model of an asymmetric hydraulic cylinder servo control system is built, and its characteristic is analysed here. To reduce the static and dynamic characteristic differences between forward and reverse motion of asymmetric cylinder, and improve system’s performance, a self-tuning linear quadratic gaussian optimum controller (SLQG) is designed successful. In the end, an asymmetric hydraulic cylinder servo system of paint robot is researched. The result shows that the above method is effective.

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